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Convert BTU (British Thermal Unit) to Joule.

Input the value of btus below to convert instantly to joules with standard conversions, definitions, and equations.

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J
Value in Joules = Value in BTUs × 1055.05585 Multiply the value in btus by the conversion factor 1055.05585.

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How to Convert BTUs to Joules

To convert btu (british thermal unit) to joule, we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.

btu-to-joule-formula.py
# Mathematical Formula
Value in Joules = Value in BTUs × 1055.05585
# Worked Example (5 BTU)
5 BTU × 1055.05585 = 5275.2792 J
What is a BTU (British Thermal Unit)?

BTU (British Thermal Unit) (BTU)

Traditional unit of heat, energy required to raise the temperature of 1 pound of water by 1°F.

What is a Joule?

Joule (J)

The base SI unit of energy, equal to work done by a force of one newton moving one meter.

BTU (British Thermal Unit) to Joule Conversion Table

BTU (British Thermal Unit) (BTU) Joule (J)
1 BTU 1055.05585 J
2 BTU 2110.1117 J
3 BTU 3165.16755 J
5 BTU 5275.27925 J
10 BTU 10550.5585 J
15 BTU 15825.83775 J
20 BTU 21101.117 J
25 BTU 26376.39625 J
50 BTU 52752.7925 J
100 BTU 105505.585 J
250 BTU 263763.9625 J
500 BTU 527527.925 J
1000 BTU 1055055.85 J

Joule to BTU (British Thermal Unit) Conversion Table

Joule (J) BTU (British Thermal Unit) (BTU)
1 J 0.00095 BTU
2 J 0.0019 BTU
3 J 0.00284 BTU
5 J 0.00474 BTU
10 J 0.00948 BTU
15 J 0.01422 BTU
20 J 0.01896 BTU
25 J 0.0237 BTU
50 J 0.04739 BTU
100 J 0.09478 BTU
250 J 0.23695 BTU
500 J 0.47391 BTU
1000 J 0.94782 BTU
Questions

Frequently Asked Questions

How do I convert btus to joules?

Multiply the value in btus by the conversion factor 1055.05585. For example, to convert 5 btus to joules: 5 × 1055.05585 = 5275.2792 J.

What is the conversion factor from btu (british thermal unit) to joule?

The conversion factor is 1055.05585. One btu (british thermal unit) is equal to 1055.05585 joules.

What is the reverse conversion from joule to btu (british thermal unit)?

To convert joules back to btus, multiply by 0.000948 (or divide the value by 1055.05585). One joule is equal to 0.000948 btus.

How many Joules are in 1 Kilowatt-hour (kWh)?

There are exactly 3,600,000 Joules (or 3.6 Megajoules) in 1 kWh.

What is the difference between a calorie and a Calorie?

A lowercase calorie (cal) is a small metric unit (4.184 J). A capitalized Calorie (Cal) is a food calorie, which is actually a kilocalorie (1,000 small calories or 4,184 J).

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